{ "id": "0810.2982", "version": "v1", "published": "2008-10-16T18:34:52.000Z", "updated": "2008-10-16T18:34:52.000Z", "title": "On the Limiting Shape of Markovian Random Young Tableaux", "authors": [ "Christian Houdré", "Trevis J. Litherland" ], "categories": [ "math.PR", "math.CO" ], "abstract": "Let $(X_n)_{n \\ge 0}$ be an irreducible, aperiodic, homogeneous Markov chain, with state space an ordered finite alphabet of size $m$. Using combinatorial constructions and weak invariance principles, we obtain the limiting shape of the associated Young tableau as a multidimensional Brownian functional. Since the length of the top row of the Young tableau is also the length of the longest (weakly) increasing subsequence of $(X_k)_{1\\le k \\le n}$, the corresponding limiting law follows. We relate our results to a conjecture of Kuperberg by showing that, under a cyclic condition, a spectral characterization of the Markov transition matrix delineates precisely when the limiting shape is the spectrum of the traceless GUE. For $m=3$, all cyclic Markov chains have such a limiting shape, a fact previously known for $m=2$. However, this is no longer true for $m \\ge 4$.", "revisions": [ { "version": "v1", "updated": "2008-10-16T18:34:52.000Z" } ], "analyses": { "subjects": [ "60C05", "60F05", "60F17", "60G15", "60G17", "05A16" ], "keywords": [ "markovian random young tableaux", "limiting shape", "markov transition matrix delineates", "multidimensional brownian functional" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0810.2982H" } } }